Aspirantskiy Vestnik Povolzhiya最新文献_第7页

The composition of flavonoids in the inflorescences of spreading marigold (Tagetes Patula L.) 万寿菊花序中黄酮类化合物的组成

Aspirantskiy Vestnik Povolzhiya Pub Date : 2022-12-23 DOI: 10.55531/2072-2354.2022.22.4.47-50

A. Saveleva, A. Kurkina

{"title":"The composition of flavonoids in the inflorescences of spreading marigold (Tagetes Patula L.)","authors":"A. Saveleva, A. Kurkina","doi":"10.55531/2072-2354.2022.22.4.47-50","DOIUrl":"https://doi.org/10.55531/2072-2354.2022.22.4.47-50","url":null,"abstract":"Aim to isolate and identify individual compounds of flavonoid nature from the inflorescences of spreading marigold (T. patula L.). \u0000Material and methods. The research material was the inflorescences of T. patula L. of the variety \"Mandarin\", collected in August 2018 in the Botanical Garden of the Samara University during the mass flowering and fruiting period. We isolated individual substances by adsorption column chromatography on silica gel L 40/100 (Czech Republic) with subsequent recrystallization. For the identification of the isolated compounds, we used the UV, 1H-NMR, 13C-NMR spectroscopy and mass spectrometry data. \u0000Results. The dominant and diagnostically significant flavonoids of the inflorescences of the spreading marigold, patulitrin and patuletin, were isolated and identified. For the first time, the 6-methoxykaempferol and 7-O--D-glucopyranoside of 6-methoxykaempferol were isolated from this type of plant raw material. Quercetin was obtained in minor quantities. The results of the study can be used for developing the methods of identification and standardization of the inflorescences of Tagetes patula L.","PeriodicalId":183034,"journal":{"name":"Aspirantskiy Vestnik Povolzhiya","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122817725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The location of eccentric fixation point in patients with central scotomas of various origin 不同来源的中心暗斑患者偏心固定点的位置

Aspirantskiy Vestnik Povolzhiya Pub Date : 2022-11-01 DOI: 10.55531/2072-2354.2022.22.2.44-49

M. A. Poroshina, E. Pedanova

{"title":"The location of eccentric fixation point in patients with central scotomas of various origin","authors":"M. A. Poroshina, E. Pedanova","doi":"10.55531/2072-2354.2022.22.2.44-49","DOIUrl":"https://doi.org/10.55531/2072-2354.2022.22.2.44-49","url":null,"abstract":"Aim to study the predominant localization of the eccentric fixation point in various types of macular pathology accompanied by the presence of a central scotoma. \u0000Material and methods. 94 eyes (90 people) with various macular pathologies leading to loss of central vision were examined. Fixation was recorded on several devices: an MP-1 and MP-3 microperimeter (Nidek Technologies, Italy) and a MAIA microperimeter (СenterVue, USA). To visualize and register the presence of macular pathology, all patients underwent optical coherence tomography using a Stratus OCT 3000 device (Carl Zeiss Meditec Inc., USA) and Spectralis (Heidelberg Engineering, Germany). \u0000Results. The study revealed that in most cases the preferred retinal locus is positioned in the upper and upper-left sector around scotoma, regardless of the etiology. \u0000Conclusion. The preferred retinal locus in most cases is located in the upper-left area of the retina near the central scotoma, the projection of which is in the lower-left side of the visual field. Knowing the preferred retinal locus, a doctor can more successfully adapt a patient with the absence of central vision.","PeriodicalId":183034,"journal":{"name":"Aspirantskiy Vestnik Povolzhiya","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130632134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The presence of two fragments of Ozurdex implants in the vitreous body 玻璃体中存在两个Ozurdex植入物碎片

Aspirantskiy Vestnik Povolzhiya Pub Date : 2022-11-01 DOI: 10.55531/2072-2354.2022.22.2.22-25

M. A. Artemov, I. S. Kazakov, A. Zolotarev

引用次数: 0

Cataract surgery in patients with extremely elongated eyeball 眼球极长患者的白内障手术

Aspirantskiy Vestnik Povolzhiya Pub Date : 2022-11-01 DOI: 10.55531/2072-2354.2022.22.1.26-30

Y. V. Grigoryeva, S. Y. Kopaev, K.G. Khliyan

引用次数: 0

Anatomical and morphological results of modified femtolaser refractive autokeratoplasty in patients with keratoconus 改良飞激光屈光自体角膜移植术治疗圆锥角膜的解剖形态学结果

Aspirantskiy Vestnik Povolzhiya Pub Date : 2022-11-01 DOI: 10.55531/2072-2354.2022.22.2.50-55

A. V. Tereshchenko, S. K. Demyanchenko, M. Timofeev, E. Erokhina

{"title":"Anatomical and morphological results of modified femtolaser refractive autokeratoplasty in patients with keratoconus","authors":"A. V. Tereshchenko, S. K. Demyanchenko, M. Timofeev, E. Erokhina","doi":"10.55531/2072-2354.2022.22.2.50-55","DOIUrl":"https://doi.org/10.55531/2072-2354.2022.22.2.50-55","url":null,"abstract":"Aim to evaluate the anatomical and morphological outcomes of modified femtolaser refractive autokeratoplasty in patients with stage II keratoconus. \u0000Material and methods. The study included 24 patients diagnosed with stage II keratoconus according to the Amsler Krumeich classification. All patients underwent femtolaser refractive autokeratoplasty (FRAK) according to a modified technique. \u0000Results. All operated patients noted an improvement in visual functions on the first day after surgery. The obtained images of optical coherence tomography showed a more uniform posterior profile in the central zone of the cornea, the absence of \"folding\" of the posterior surface. A characteristic feature of the postoperative period was the change in the depth of the anterior chamber its pronounced decrease was noted with a tendency to a systematic increase. In 2 months after the removal of suture fixation, the depth of the anterior chamber remained stable throughout the follow-up period. The data of confocal microscopy of the central zone of the cornea after 12 months demonstrated the absence of additional (specific) morphological changes in the cornea. The characteristic morphological changes for keratoconus remained the same as before the FRAK.","PeriodicalId":183034,"journal":{"name":"Aspirantskiy Vestnik Povolzhiya","volume":"87 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114040668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Eyelid ectropion: aesthetic and functional issues 眼睑外翻:美学和功能问题

Aspirantskiy Vestnik Povolzhiya Pub Date : 2022-11-01 DOI: 10.55531/2072-2354.2022.22.2.40-43

R. Pakhomova, T. F. Kochetova, N. G. Kalashnikova

{"title":"Eyelid ectropion: aesthetic and functional issues","authors":"R. Pakhomova, T. F. Kochetova, N. G. Kalashnikova","doi":"10.55531/2072-2354.2022.22.2.40-43","DOIUrl":"https://doi.org/10.55531/2072-2354.2022.22.2.40-43","url":null,"abstract":"Aim to present the results of the author's treatment method for postoperative complications in the lower eyelid after blepharoplasty. \u0000Material and methods. Patients in the postoperative period after blepharoplasty were included in the study (n = 11). All patients had age-related changes in the skin of the upper and lower eyelids before the surgery. After surgery, the patients had a complication in the form of an inversion of the lower eyelid. In the early postoperative period (up to 6 months), all patients with ectropion underwent the author's treatment technique using an erbium laser (Er:YAG, 20940 nm). \u0000Results. The errors in the diagnosis and planning of the volume of surgical intervention, surgical errors are the main causes of complications after blepharoplasty affecting the function of the eye. In order to avoid the complications, it is necessary to take into account not only the degree of atrophy of the eyelid skin, but also the structural features of the eyelids and the periorbital region. The study proved that the author's method of treatment using an erbium laser (Er:YAG, 20940 nm) gives positive results. Observation of patients during 6 months after the treatment revealed no recurrence of inversion of the lower eyelids and the need for additional therapy.","PeriodicalId":183034,"journal":{"name":"Aspirantskiy Vestnik Povolzhiya","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129404630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The treatment of cornea pathology using scleral lenses 巩膜晶状体治疗角膜病变

Aspirantskiy Vestnik Povolzhiya Pub Date : 2022-11-01 DOI: 10.55531/2072-2354.2022.22.2.15-21

Jehad Kh. A. Alhjouj, Alexander N. Samoylov, Viktor A. Usov, Dinara R. Ganyatullina

{"title":"The treatment of cornea pathology using scleral lenses","authors":"Jehad Kh. A. Alhjouj, Alexander N. Samoylov, Viktor A. Usov, Dinara R. Ganyatullina","doi":"10.55531/2072-2354.2022.22.2.15-21","DOIUrl":"https://doi.org/10.55531/2072-2354.2022.22.2.15-21","url":null,"abstract":"This review focuses on the therapeutic use of scleral lenses in the treatment of corneal pathology described in the international scientific literature. \u0000The potential of scleral lenses in the treatment of pathology of the cornea and anterior segment of the eye has been studied since the late 1980s. The scleral lenses were actively used both in the treatment of corneal pathology and in the treatment of diseases of the anterior segment of the eye. The use of scleral lenses in the treatment of corneal pathology may promise an area for development for this treatment modality. Contrary to eye-drops, which remain on the ocular surface for a relatively short time, the scleral lenses provide a long-term hydration of the corneal epithelium and paralimbal conjunctiva. Tarsorrhaphy and other surgical interventions limit visual acuity and the field of vision and provide poor cosmetic results. The scleral lenses, however, can provide 2-in-1 therapy as they protect the ocular surface and, in case of epithelial roughness, may improve visual acuity in patients with ocular surface diseases. The ability of scleral lenses to provide a continuous hydration and protection of the ocular surface, allowing patients to maintain functional visual acuity, as well as their ability to be used in combination with other forms of therapy, makes them a valuable option for the treatment of severe ocular surface diseases. Incorporating scleral lenses into a combined, multidisciplinary approach to treatment can bring relief to patients without resorting to more invasive treatment options. \u0000Our analysis identified only a few studies on the use of scleral lenses in the treatment of corneal pathology, which is likely due to the complexity of customization of their fit. This indicates the need for scientific research aimed at developing universal scleral lenses for the treatment of the cornea based on the criteria of the radius of curvature and the diameter of the cornea of a healthy eye.","PeriodicalId":183034,"journal":{"name":"Aspirantskiy Vestnik Povolzhiya","volume":"31 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132241477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative analysis of the use of a 3D imaging system and a standard analog microscope in lens surgery 三维成像系统与标准模拟显微镜在晶状体手术中应用的比较分析

Aspirantskiy Vestnik Povolzhiya Pub Date : 2022-11-01 DOI: 10.55531/2072-2354.2022.22.2.31-34

A. V. Zhuravlev, V. S. Stebnev

{"title":"Comparative analysis of the use of a 3D imaging system and a standard analog microscope in lens surgery","authors":"A. V. Zhuravlev, V. S. Stebnev","doi":"10.55531/2072-2354.2022.22.2.31-34","DOIUrl":"https://doi.org/10.55531/2072-2354.2022.22.2.31-34","url":null,"abstract":"Aim to evaluate the safety and efficacy of lens surgery using 3D imaging technologies in comparison with the standard analog imaging method. \u0000Material and methods. The study involved 500 people (500 eyes). The main group of patients consisted of 250 eyes operated using a LEICA M844 operating microscope with an NGENUITY camera instead of optical eyepieces, equipped with both CONSTELLATION (Alcon) and MILLENNIUM (Bausch Lomb) surgical systems. The control group consisted of 250 eyes operated on using the same microscope but with standard eyepieces. All patients underwent cataract phacoemulsification. The control points for the result evaluation were the maximum corrected visual acuity in patients, the time of operation and the number of complications. \u0000Results. The patients in the main group, on average, had a higher maximum corrected visual acuity after surgery, as well as a shorter time for surgical intervention. \u0000Conclusion. The technology of three-dimensional imaging is relevant for performing operations on the eye lens and has a potential for further development and research of the technology, and also has the prospect of replacing the analog microscope binoculars in the near future.","PeriodicalId":183034,"journal":{"name":"Aspirantskiy Vestnik Povolzhiya","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125312274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Results of complex therapy of the central retinal vein occlusion using laser methods of treatment 激光治疗视网膜中央静脉闭塞的综合疗效观察

Aspirantskiy Vestnik Povolzhiya Pub Date : 2022-11-01 DOI: 10.55531/2072-354.2022.22.2.8-14

S. Aksenova, E.A. Khozina, O. Vasilyeva, T.N. Kumaksheva

引用次数: 0

The effect of the sulfated glycosaminoglycans complex on the human corneal epithelial cells proliferation: an in vitro experiment 硫酸糖胺聚糖复合物对人角膜上皮细胞增殖的影响:体外实验

Aspirantskiy Vestnik Povolzhiya Pub Date : 2022-11-01 DOI: 10.55531/2072-2354.2022.22.2.56-61

I. G. Trifanenkova, Elena Petersen, S. Novikov, G. Usanova

{"title":"The effect of the sulfated glycosaminoglycans complex on the human corneal epithelial cells proliferation: an in vitro experiment","authors":"I. G. Trifanenkova, Elena Petersen, S. Novikov, G. Usanova","doi":"10.55531/2072-2354.2022.22.2.56-61","DOIUrl":"https://doi.org/10.55531/2072-2354.2022.22.2.56-61","url":null,"abstract":"Aim to study the proliferative effect of various concentrations of sulfated glycosaminoglycans (sGAG) on the culture of human corneal epithelial cells. \u0000Material and methods. The study focused on the properties of a mixture of sGAG consisting of chondroitin-4-sulfate, chondroitin-6-sulfates and keratan sulfates obtained by isolation from the transparent unchanged stroma of the cornea of farm animals. The material for the in vitro study was the cells of the anterior epithelium of the human cornea. \u0000In the experimental group No.1, a mixture of sGAG was added to the culture medium at a concentration of 0.1%, in the experimental group No.2 at a concentration of 0.5%, in the experimental group No.3 at a concentration of 1.0%. In the control group No.1, the medium was replaced without the addition of solutions, cell seeding was carried out similarly to seeding with experimental samples. The negative control group included the holes of the tablet without the addition of medium and solution. \u0000Results. The highest levels of the cellular index (CI) were obtained in the experimental group No.3 (1.00% of sGAG) and amounted to 2.86 0.11 (the total increase in indicators was 60.67%). In the experimental group No.2 (0.50% sGAG), the cellular index levels were 2.650.24 (the total increase in indicators was 52.29%), which was significantly different from the experimental group No.1 (0.10% sGAG) and the control group No.1, where these indicators were 2.54 0.21 (35.81%) and 2.370.02 (25.39%) respectively. \u0000Conclusion. The final CI indicators show that solutions of the sGAG mixture at concentrations of 0.5% and 1.0% have a more pronounced proliferative effect on human corneal epithelial cells in vitro from the range of concentrations under study. The results obtained open up the prospects for the use of sGAG in the development of new approaches to the treatment of patients undergoing a chronic drug therapy or patients with concomitant corneal diseases.","PeriodicalId":183034,"journal":{"name":"Aspirantskiy Vestnik Povolzhiya","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125055267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1